Fire-alarm.



C. E. ROGERS. FIRE ALARM. APPLICATION FILED MAR. 12. 1913. RENEWED NOV. 18, 1914.

1,125,720. PatentedJan. 19, 1915.

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CHARLES E. ROGERS, 0F DENVER, COLORADO.

FIRE-ALARM.

Application filed March 12, 1913, Serial No. 753,727.

To all whom it may concern:

Be it known that 1, CHARLES E. Rocnns, a citizen of the United States, residing at the city and county of Denver and State of Colorado, have invented certain new and useful Improvements in Fire-Alarms, of which the following is a specification.

My invention relates to an improvement in fire alarms, and theobject is to provide means for sounding a general alarm throughout a building upon the operation of the apparatus from any floor of the building, and also to designate the floor from which the alarm was sounded and thereby ineicate upon which floor there is a fire.

The invention consists of certain novel features of construction and combinations of parts which will. be hereinafter described and pointed out in the claims.

In the accompanying drawings ;Figure 1 is aview in front elevation of the apparatus, showing it applied to three floors of a building; Fig. 2 is a vertical sectional view showing the wiring, and position of the targets when contact is made for causing the alarms to be sounded; Fig. 3 is a vertical sectional view disclosing the position of the targets when not in use, or in their normal positions; Fig. 1 is an enlarged view in front elevation of one of the boxes, with parts broken away to show the operating parts; and Fig. 5 is an enlarged detail sectional view of the target when in position for making electrical contact.

A, A, represent the fire alarm boxes which are located on the various floors of a building. In the drawing, I have disclosed only three boxes, one box for each floor of a building. Located in each box are targets B, each target representing or designating a floor, and in this instance, as there are only three floors represented, the targets are designated by the numerals 1, 2 and 3.

A wire or cable 4 connects each of the targets B, designated 1, together, and the wire passes over a pulley 5 on the upper floor of the building, and extends downwardly where it is connected to a lever 6 which is pivotally connected to the box A, on the first floor of the building. Wires 7 and 8 connect the remaining targets B, designated as 2 and 3, together. The wire 7 is connected to the targets B and the wire 8 is connected to the targets B and the wires 7 and 8 pass over pulleys 9 and 10, respectively, which pulleys are located on Specification of Letters Patent.

Patented Jan. 19, 1915.

Renewed November 18, 1914. Serial No. 872,844.

the top or third floor of the building. The wlres extend downwardly from the pulleys, and the wire 7 is connected to a lever 11, which is pivotally connected to the box A on the second floor, and the wire 8 is connected to a lever 12 which is pivotally connected to the box A on the third or upper floor.

The targets on the first floor of the building have wires l3, 13 connected thereto, which wires extend through the bottom of the box A, and are connected to spiral springs 14, 1 1. The springs 14 are connected to the floor of the building or some suitable base 15 for the purpose of holding the wires 4, 7 and 8 taut, and insuring the targets traveling in their proper paths.

The main electrical wires 16 and 17, (Fig. 2) are connected to battery 18, and extend to the uppermost floor of the building. Located on each floor of the building is a bell or gong C, which is electrically connected to the wires 16 and 17, by branch wires 19 and 20.

Contact springs 21, 22 are connected to rear sides of each box A, and these contact springs are connected to the wires 16 and 17 by branch wires 23 and 24. Contact members or buttons 25 are located in each box A and are adapted to be pressed against the contact springs 21 and 22, for bringing the springs into contact with each other for completing the circuit and causing the gongs to be sounded. 1

The targets B are preferably made wedgeshape, and when raised upon the pulling on the levers 6, 11 and 12, the targets will pass between the buttons 25 and bars 26, which bars are located in the boxes A. As the'targets are drawn upward in the boxes they will be forced against the buttons 25 causing the buttons to press the contact springs 21 and 22 together, and thereby completing the circuit and causing the gongs to be sounded.

The boxes A are provided with an opening 27 in the front thereof and near the top for the purpose of disclosing to an observer the target which has been actuated, and indicating what floor the fire is on and from which the alarmwas given. These openings 27 may be filled with glass or some other transparent material, so that the targets can readily be seen or the openings may be left entirely open or exposed.

It is believed that from the foregoing the a floor below.

invention can be clearly understood, but to briefly recapitulate, we will assume that it is desired to turn in the alarm from the first floor. The lever 6 is pulled downward causing all of the targets B to be raised in each of the boxes A, as they are all connected together by the wire a, and the wire is connected to thelever 6. The targets 13 as they are drawn upward will pass between the bars 26 and buttons 25, and as the targets are wedge-shape, the bars 26 will force them against the buttons 25, and the buttons will cause the contact springs 21 and 22 to be pressed together, for the purpose of completing the electrical circuit, and causing the gongs to be sounded. The targets each hearing a number of a floor, indicate to anyone looking into the box on any floor of the building, the floor from which the alarm was sounded so that it can be determined whether or not the fire is on a floor above or By marking the targets with the numbers of the floors and having them connected together so that an alarm sounded from the first floor, will be indicated upon he other floors of the building, that the alarm was sounded from the first and that the fire is on the first floor, every person will be in a position to act to his or her advantage in leaving the building without causing any confusion or injury by crowding at stairways and the like.

An apparatus of this character is very simple in construction, consisting of few parts, and there is little or no danger of their getting out of order, and furthermore the apparatus can be installed at very small cost. Again the parts can be made of any suitable material, and the expense can be regulated in this manner. Having fully described my invention, and what I desire to secure by Letters Patent, is

. 1. In a fire alarm, the combination with a plurality of alarm boxes one located on each floor of a building, of a plurality of targets in. each box, and each target in a box designating a different floor of a building, mechanical means connecting each of the targets designating a floor together and means for actuating said connecting means for causing a like target to be displayed from each box designating the same floor.

2. In a fire alarm, the combination with a plurality of alarm boxes and gongs one located on each floor of a building, of an electric circuit connecting the boxes and gongs together, a circuit making and breakmg device located at each box, a plurality of targets in each box, and each target in a box representing a different fioor of a building,

.meansconnecting each target representing Whereby each of the targets for an individual floor can be operated separately, said means when actuated adapted to raise the targets representing a floor to a position where they will be displayed from each box, and the targets will engage the circuit making and breaking device for completing the circuit andcause the gongs to be sounded.

3.111 a fire alarm, the combination with a plurality of alarm boxes and gongs one located on each floor of a building, of an electric circuit connecting the boxes and gongs, a circuit making and breaking device located at each box, a plurality of targets in each box, and each target in a box representing a different floor of a building, means connecting each of the targets representing a floor together, so that the targets for each floor act independently of the others, and means connected to one of said connecting means at each box, whereby upon the actuation of said means at a box, the targets representing a floor will be moved and displayed from each box, and the targets will engage the circuit making and breaking device for completing the circuit and cause the gongs to be sounded.

4. in a fire-alarm, the combinationwith a plurality of alarm boxes, one box located on. each floor of a building, of a plurality of targets in each box, and each target in a box designating a 'difierent floor, mechanical means connecting the targets representing a floor together, and means on each box connected only to the targets for that fioor for causing said targets to be displayed at each box upon the actuation of said means.

5. In a fire alarm, the combination with a pluralityof alarm-boxes and gongs, one box located on each floor of a building, an electric circuit connecting the gongs and boxes, of a plurality of targets in each box, and each target in a box designating a different floor, means connecting the targets repre senting a floor together, and means on each box connected only to the targets for that floor for causing. said targets to be displayed at each. box upon the actuation of said means, the targets closing the circuits for sounding the gongs at all of the boxes.

In testimony whereof I afiix my signature, in the presence of two witnesses.

FRANK PREsTIooK, DARWIN T. Mason.

Copies of this patent may be obtained for fivecents each, by addressing the Commissioner of Patents,

Washington, D. G. 

